Contra Costa Water District
236 public works projects registered with the California Department of Industrial Relations, 2013–2026 · Concord, Contra Costa County. Reported contract value: $36,310,747.
Projects by year
| Year | Projects | Reported contract value |
|---|---|---|
| 2026 | 13 | $14,230,867 |
| 2025 | 18 | $12,620,038 |
| 2024 | 19 | $9,424,842 |
| 2023 | 17 | — |
| 2022 | 23 | — |
| 2021 | 19 | — |
| 2020 | 19 | — |
| 2019 | 20 | — |
| 2018 | 17 | — |
| 2017 | 22 | — |
| 2016 | 11 | — |
| 2015 | 26 | — |
| 2014 | 6 | — |
| 2013 | 2 | — |
DIR has published contract amounts since July 2024; earlier years count projects only.
Types of work
- Other · 94
- Water · 53
- Paving & streets · 20
- Storm drain & flood control · 16
- Electrical, low voltage & AV · 13
- Concrete & masonry · 12
- Buildings & facilities · 10
- HVAC & mechanical · 5
- Sewer & wastewater · 4
- Demolition & site work · 3
- Parks, landscape & fields · 2
- Roofing · 1
Inferred by Atriam from each project's name and description, not reported by the agency.
Contractors it awards most
| Prime contractor | Projects | Reported contract value |
|---|---|---|
| G S E CONSTRUCTION COMPANY INC | 8 | $2,565,418 |
| CON-QUEST CONTRACTORS INC | 5 | $1,128,000 |
| E E GILBERT CONSTRUCTION INC | 2 | $405,000 |
| GARNEY PACIFIC INC | 2 | $378,110 |
| AMS.NET LLC | 2 | $185,480 |
| TNT INDUSTRIAL CONTRACTORS INC | 1 | $4,675,635 |
| R J GORDON CONSTRUCTION INC | 1 | $3,207,005 |
| CONSOR NORTH AMERICA, INC. | 1 | $1,375,000 |
| BLOCKA CONSTRUCTION INC | 1 | $1,309,000 |
| GRADETECH INC | 1 | $1,239,002 |
| WESTROCK ENGINEERING | 1 | $888,895 |
| AZTEC CONSULTANTS | 1 | $648,044 |
| BRANNON CORPORATION DBA P BRANNON CORPORATION | 1 | $480,451 |
| S2SERM, LLC | 1 | $100,000 |
| GHD INC | 1 | $35,000 |
Latest projects
| Date | Project | Prime contractor | Contract amount |
|---|---|---|---|
| Jul 16, 2026 | Old River Pump Station Power System ImprWater | BLOCKA CONSTRUCTION INC | $1,309,000 |
| Jul 15, 2026 | Water Quality Monitoring InstrumentationWater | G S E CONSTRUCTION COMPANY INC | $434,800 |
| Jul 15, 2026 | Water Quality InstrumentationWater | G S E CONSTRUCTION COMPANY INC | $434,800 |
| Jul 8, 2026 | Storm Damage Repairs - PN 125081-125082Storm drain & flood control | GRADETECH INC | $1,239,002 |
| Jun 30, 2026 | City of Brentwood EarthTec Tank PadConcrete & masonry | G S E CONSTRUCTION COMPANY INC | $89,276 |
| Jun 20, 2026 | Clayton Road Emergency RepairPaving & streets | CON-QUEST CONTRACTORS INC | $150,000 |
| May 22, 2026 | Old River Pipeline Corrosion MonitoringOther | CON-QUEST CONTRACTORS INC | $90,000 |
| May 20, 2026 | RBWTP Clearwell, Chem Feed, & Sed BasinsOther | TNT INDUSTRIAL CONTRACTORS INC | $4,675,635 |
| May 20, 2026 | FY27/28 Construction ManagementOther | CONSOR NORTH AMERICA, INC. | $1,375,000 |
| Feb 18, 2026 | District Center Office ImprovementsBuildings & facilities | AZTEC CONSULTANTS | $648,044 |
| Feb 10, 2026 | Verkada Access Control-Concord CampusElectrical, low voltage & AV | AMS.NET LLC | $110,000 |
| Jan 26, 2026 | Los Vaqueros Dam Intake Gates – Phase 1Other | UNICO MECHANICAL CORP | $3,367,200 |
| Jan 22, 2026 | Bollman Sludge Pipeline RelocationSewer & wastewater | GARNEY PACIFIC INC | $308,110 |
| Dec 10, 2025 | Sun Terrace Pump Station ImprovementsWater | WESTROCK ENGINEERING | $888,895 |
| Oct 1, 2025 | Contra Costa Blvd Leak RepairWater | CON-QUEST CONTRACTORS INC | $500,000 |
| Oct 1, 2025 | Potholing Charlotte Ave & Vicinity PLROther | GARNEY PACIFIC INC | $70,000 |
| Sep 17, 2025 | Chain link & Gate servicesBuildings & facilities | S2SERM, LLC | $100,000 |
| Aug 12, 2025 | Dam Security ImprovementsPaving & streets | G S E CONSTRUCTION COMPANY INC | $219,960 |
| Aug 1, 2025 | Lateral 46.7Sewer & wastewater | CON-QUEST CONTRACTORS INC | $190,000 |
| Jul 16, 2025 | Storm Damage Repairs –Los Vaqueros PondsStorm drain & flood control | BRANNON CORPORATION DBA P BRANNON CORPORATION | $480,451 |
| Jun 30, 2025 | Lateral 46.7 Leak RepairSewer & wastewater | — | $350,000 |
| Jun 25, 2025 | Irene Drive & Vicinity Pipeline ReplacemWater | — | $2,238,000 |
| Jun 18, 2025 | F/y26 liner repairsOther | E E GILBERT CONSTRUCTION INC | $165,000 |
| Jun 18, 2025 | Liner repair mp 39.00Other | E E GILBERT CONSTRUCTION INC | $240,000 |
| Jun 5, 2025 | Storm Damage Repairs - PNs 124085-125081Storm drain & flood control | — | $2,199,530 |
Source: California Department of Industrial Relations public works project registrations (PWC-100), updated daily by Atriam.